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regulatory authorities.
“Maintenance events for each
component and part lead to the creation
of job cards for a maintenance check,”
explains Henry at MRO Software. “Our
Maximo system uses a template to plan,
schedule and execute each job card. This
will include estimating the materials
required as well as accessing relevant
documents, and Maximo has a
connection to the illustrated parts
catalogue (IPC) and other manuals to
allow all parts to be provided in sufficient
time and to save the mechanic time in
completing the task.”
Although the maintenance interval for
each part is loaded together with their
28 I MAINTENANCE & ENGINEERING
AIRCRAFT COMMERCE ISSUE NO. 36 • AUGUST/SEPTEMBER 2004
Avexus’s Impresa stores an aircraft’s structure
down to the level of each component. The
maintenance status of each component is
tracked and can be viewed, as can the
maintenance task cards.
serial numbers into M&E IT systems,
OEMs make changes to the maintenance
intervals of different parts. “These allow
the timing of work packages to be
altered,” says Dibble. “Our system then
goes on to examine what parts can be
used for each job card, checks these with
inventory levels and either reserves them
for the check or orders them from
suppliers. Maximo can also take into
consideration the reliability of relevant
components and decide whether they
should be removed during the check.”
Records have to be kept of
maintenance items performed. M&E IT
systems with aircraft configuration and
the master parts list have the ability to
track and keep a maintenance history,
and automatically generate technical
records. “The maintenance history for
each serialised part is in effect the
technical record required by the
authorities,” explains Stein Bruch,
director of business development at
VISaer. “The maintenance history of each
part can be monitored with respect to
time since overhaul, time since new and
time since last service. Other information
such as relevant engineering orders,
accumulated FH and FC for the part, and
maintenance removal history are all kept.
As well as maintenance history
information, the component’s status can
also be followed. This includes
information such as where and when
installed. Ultimately, technical records
can be analysed by aircraft tail number,
part and serial numbers and specific
date.”
During operation, aircraft
components and structures will require
repairs as well as component changes.
“Repair schemes come from OEMs in the
form of task cards together with
maintenance manual references.
Engineers have to manually estimate the
MH, materials and tooling required to
perform the repairs, however,” explains
Bruch.
Repair schemes can either be standard
for common problems, or have to be
created when new ones are required.
“These can then be used as templates for
future requirements and are stored in the
M&E IT system,” says Dibble.
Ordering parts
Parts are continuously required by
line mechanics and maintenance
operations control for line maintenance,
base maintenance for airframe checks,
engine and component repair shops, and
inventory warehouses. Parts and
components can be acquired and
purchased from OEMs or other suppliers.
Purchasers can now make electronic
purchase orders and communicate these
directly to the OEMs’ and suppliers’
systems.
“The start of the purchasing process
begins with the IPC reference number.
This shows the part, dash and serial
numbers allowed for each particular
component and structure,” explains
Hughes. “The IPC also shows the aircraft
tail numbers on which each part can be
used, as well as indicating which parts
can be interchanged with each other if the
desired part number is not available.”
Airline purchasers need to
communicate with the OEMs and various
other suppliers to check various aspects
of availability and pricing information.
“Purchasers will raise a purchase order,
which can be done electronically with
Maximo,” says Henry. “This purchase
order can be approved electronically and
the purchaser can then use Maximo to
29 I MAINTENANCE & ENGINEERING
ISSUE NO. 36 • AUGUST/SEPTEMBER 2004 AIRCRAFT COMMERCE
TRAX Software’s system keeps the configuration
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